2521481885 has 8 divisors (see below), whose sum is σ = 3258530520. Its totient is φ = 1862017344.

The previous prime is 2521481863. The next prime is 2521481899. The reversal of 2521481885 is 5881841252.

It can be written as a sum of positive squares in 4 ways, for example, as 14577124 + 2506904761 = 3818^2 + 50069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2521481885 - 2¹² = 2521477789 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19395950 + ... + 19396079.

It is an arithmetic number, because the mean of its divisors is an integer number (407316315).

Almost surely, 2^2521481885 is an apocalyptic number.

It is an amenable number.

2521481885 is a deficient number, since it is larger than the sum of its proper divisors (737048635).

2521481885 is a wasteful number, since it uses less digits than its factorization.

2521481885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38792047.

The product of its digits is 204800, while the sum is 44.

The square root of 2521481885 is about 50214.3593506877. The cubic root of 2521481885 is about 1361.0851138330.

The spelling of 2521481885 in words is "two billion, five hundred twenty-one million, four hundred eighty-one thousand, eight hundred eighty-five".